add console-log example (#239)

Cargo.toml

@@ -82,6 +82,9 @@ required-features = ["tokio-runtime", "tokio"]
 name = "storage-cookie"
 required-features = ["tokio-runtime"]
 
+[[example]]
+name = "console-logs"
+required-features = ["tokio-runtime"]
 
 [[example]]
 name = "httpfuture"

examples/console-logs.rs

@@ -0,0 +1,53 @@
+// This example demonstrates how to capture console logs.
+
+use std::time::Duration;
+
+use chromiumoxide::{cdp::js_protocol::runtime::EventConsoleApiCalled, BrowserConfig};
+use futures::StreamExt;
+
+const TARGET: &str = "https://www.microsoft.com/";
+
+#[tokio::main]
+async fn main() {
+    tracing_subscriber::fmt::init();
+
+    let (mut browser, mut handler) =
+        chromiumoxide::Browser::launch(BrowserConfig::builder().with_head().build().unwrap())
+            .await
+            .expect("failed to launch browser");
+
+    let handle = tokio::task::spawn(async move {
+        while let Some(event) = handler.next().await {
+            tracing::debug!(event = ?event);
+        }
+    });
+
+    let page = browser
+        .new_page("about:blank")
+        .await
+        .expect("failed to create page");
+
+    let mut console_events = page
+        .event_listener::<EventConsoleApiCalled>()
+        .await
+        .expect("Failed to add event listener");
+    let logs_handle = tokio::spawn(async move {
+        while let Some(event) = console_events.next().await {
+            println!(
+                "{}",
+                serde_json::to_string_pretty(&*event).expect("Failed to serialize event")
+            );
+        }
+    });
+
+    let _ = page.goto(TARGET).await.expect("failed to navigate");
+
+    tokio::time::sleep(Duration::from_secs(3)).await;
+
+    browser.close().await.expect("Failed to close browser");
+    logs_handle.await.expect("Failed to wait for logs handle");
+    handle.await.expect("Failed to await handle");
+
+    // Give browser time to finish closing.
+    tokio::time::sleep(Duration::from_secs(1)).await;
+}